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How do pennies get so dirty?

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2012-01-11 23:48:00
2012-01-11 23:48:00
Yes, the tarnish is copper oxide. But actually the tarnish is not from when the pennies are made (brand new pennies are shiny); the tarnish is from the copper of the penny reacting with the oxygen in the air over time.

The article I have given a link for is quite funny, but it also very informative as regards to pennies, so you might want to check it out.

plz decuse the reason why tarnish gets on pennies

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they get so dirty because they traval around the world and you can have pennies from 156 years ago


Well pennies are already dirty from other peoples germs including yours but you would probably put it in dirt to make it dirty.


You rub it with vinegar


Because many people drop pennies on the ground and who knows what else the penny touches.


Because of the acid and carbonation.


you cant because Pepsi is sticky


Coke does but I don't know about Dr.Pepper.


If you have a dirty/rusty penny the lemon juice will clean it.


Because its acids clean the penny



Dirty pennies are coated with a layer of copper oxide. The acid will react with the copper oxide, dissolving it. Acids used to clean pennies are not strong enough to react with copper itself.


Because the acid contents within the juice


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100 pennies = 1 dollar so 100,000 pennies = 1000 dollars. So simple!


Well, there are 100 pennies in a pound, so there are 1000 pennies in £10 and 10,000 pennies in £100. If you multiply 10,000 by ten that would be 100,000 pennies in £1000, so 250,000 pennies would amount to 2 and a half thousand pounds.


Pennies and cents are the same, so 50 cents = 50 pennies


Dirty Money... "Lincoln was a CLEAN and honest man"


There are 100 pennies in one dollar so there are 100 pennies x $400 = 40,000 pennies. About 180 pennies are in a pound so you better have a cart to carry all these 222 pounds of pennies.


100 pennies make $1.00 200 pennies make $2.00 and so on.


10 pennies are in 1 dime So 650 pennies is 65 dimes


10 dimes, or 100 pennies, or 1 dime and 90 pennies, or 2 dimes and 80 pennies, or 3 dimes and 70 pennies, and so on.


Because people drop them and put them in waterfountains and they have been used for a long time probably :)


All the chemicals inside it combine and make the dirty penny cleaner.



100 pennies make a dollar so there are 50,000 pennies in 500 dollars



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